Fuel Injector: Service and Repair

Removal

1. Release pressure from fuel system: Fuel Pressure Release

2. Remove upper intake manifold:

3. Remove fuel injection supply manifold: Service and Repair

4. Carefully remove electrical harness connectors from individual fuel injectors as required.

5. Remove injector retaining clips as required.

NOTE: It is sometimes easier to remove the fuel injectors and fuel rail as an assembly.

6. Grasping fuel injector body, pull up while gently rocking fuel injector from side to side.

7. Inspect fuel injector O-rings (two per fuel injector) for signs of deterioration. Replace as required.

8. Inspect fuel injector end cap (covering the fuel injector needle) and washer for signs of deterioration. Replace as required. If end cap is missing, look for it in the intake manifold.

Installation

CAUTION: Never use silicone grease. It will clog the fuel injectors.

1. Lubricate new O-rings with a light grade oil such as X0-10W-30-QSP or equivalent meeting Ford specification ESE-M2C153-E and install two on each fuel injector.

2. Install fuel injectors , using a light, twisting, pushing motion.

3. Install fuel injection supply manifold:

4. Replace retainer clips if distorted.

5. Install electrical harness connectors to fuel injectors.

6. Install upper intake manifold:

7. Perform fuel pressure release Post-Service procedure: